<template>
  <div>
    <!-- 面包屑导航区-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

<!--    卡片视图区-->
    <el-card>
<!--      搜索区-->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable
            @clear="getGoodsList">
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddpage">添加商品</el-button>
        </el-col>
      </el-row>
<!--      table表格区域-->
      <el-table :data="goodslist" border stripe>
<!--        索引列-->
        <el-table-column type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column label="商品价格(元)" prop="goods_price" width="95px"></el-table-column>
        <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
        <el-table-column label="创建时间" prop="add_time" width="140px">
          <template slot-scope="scope">
            {{scope.row.add_time | dateFormat}}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template slot-scope="scope">
<!--            编辑按钮-->
            <el-button type="primary"
                       icon="el-icon-edit"
                       size="mini"></el-button>
<!--            删除按钮-->
            <el-button type="danger"
                       icon="el-icon-delete"
                       size="mini"
                       @click="removeById(scope.row.goods_id)"></el-button>
          </template>
        </el-table-column>
      </el-table>

<!--      分页区域-->
      <el-pagination @size-change="handleSizeChange"
                     @current-change="handleCurrentChange"
                     :current-page="queryInfo.pagenum"
                     :page-sizes="[5,10,15,20]"
                     :page-size="queryInfo.pagesize"
                     layout="total, sizes, prev, pager, next, jumper"
                     :total="total" background>
      </el-pagination>
    </el-card>
  </div>
</template>

<script>

export default {
  name: 'List.vue',
  data() {
    return {
      // 查询参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      // 商品列表
      goodslist: [],
      // 总数据条数
      total: 0
    }
  },
  created () {
    this.getGoodsList()
  },
  methods: {
    // 根据分页获取对应的商品列表
    async getGoodsList() {
      const { data: res } = await this.$http.get('goods?pagenum=' + this.queryInfo.pagenum + '&pagesize=' + this.queryInfo.pagesize)
      if (res.meta.status !== 200) {
        return this.$message.error('获取商品列表失败！')
      }
      this.$message.success('获取商品列表成功！')
      // console.log(res.data)
      this.goodslist = res.data.goods
      this.total = res.data.total
    },
    // 改变每页显示条数
    handleSizeChange(newSzie) {
      this.queryInfo.pagesize = newSzie
      this.getGoodsList()
    },
    // 切换显示页数
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getGoodsList()
    },
    // 根据id删除商品
    async removeById(id) {
      const confirmResult = await this.$confirm(
        '此操作将永久删除该商品，是否继续？',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'waring'
        }
      ).catch(err => err)

      if (confirmResult !== 'confirm') {
        return this.$message.info('已经取消了删除！')
      }
      const { data: res } = await this.$http.delete(`goods/${id}`)
      if (res.meta.status !== 200) {
        return this.$message.error('删除商品失败！')
      }

      this.$message.success('删除商品成功！')
      await this.getGoodsList()
    },
    // 添加商品路由跳转事件
    goAddpage() {
      this.$router.push('/goods/add')
    }
  }
}
</script>

<style scoped>

</style>
